I hardly ever draw digitally. I know I did when I fixed Bella's face, but even then Iwas unsure whether I was going to pull it off right.
Even when I had the aid of a Wacom tablet, I still made the first sketch on paper.
This is good for a digital rendition! Did you start it in MS Paint or GIMP? MS Paint is usually the ULTIMATE maker or breaker of artists. Because of it's lack of tools, if you accomplish making something worthwhile, then you are a true pro at what you can do.....or you could end up failing horribly.